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Enhancing Canola Yield and Photosynthesis under Water Stress with Hydrogel Polymers

Phyton-International Journal of Experimental Botany 2024年第7期93卷 1623-1645页

作者： Elham A.Badr Gehan Sh.Bakhoum Mervat Sh.Sadak Ibrahim Al-Ashkar Mohammad Sohidul Islam Ayman El Sabagh Magdi T.Abdelhamid field crops Research department National Research CentreCairo12622Egypt Botany department National Research CentreCairo12622Egypt Plant Production department College of Food and Agriculture SciencesKing Saud UniversityRiyadh12271Saudi Arabia department of Agronomy Hajee Mohammad Danesh Science and Technology UniversityDinajpur5200Bangladesh department of field crops Faculty of AgricultureSiirt UniversitySiirt56100Turkey department of Agronomy Faculty of AgricultureKafrelsheikh UniversityKafrelsheikh33516Egypt department of Research Centers Montana State UniversityBozemanMT 59717USA

While Egypt’s canola production per unit area has recently grown,productivity remains low,necessitating increased *** are water-absorbent polymer compounds that can optimize irrigation schedules by increasing the soil’s ability to retain ***,twoﬁeld experiments were conducted to examine hydrogel application to sandy soil on canola growth,biochemical aspects,yield,yield traits,and nutritional quality of yielded seeds grown under water deﬁcit stress *** experiments were conducted by arranging a split-plot layout in a randomized complete block design(RCBD)with three times replications of each *** water stress at 75%or 50%of crop evapotranspiration(ETc)lowered chlorophyll a,chlorophyll b,caro-tenoids,and total pigments content,indole-3-acetic acid,plant development,seed yield,and oil and total carbo-hydrates of seed yield,hydrogel treatment enhanced all of the traits mentioned ***,hydrogel enhanced to gather compatible solutes(proline,amino acids,total soluble sugars),phenolics content in leaves,seed protein,and crop water productivity,which increased while the plants were under water *** results revealed that the full irrigation(100%ETc)along with hydrogel compared to water-stressed(50%ETc)led to enhanced seed yield(kg ha^(-1)),Oil(%),and Total carbohydrates(%)of rapeseed by 57.1%,11.1%and 15.7%,***,under water-stressed plots with hydrogel exhibited enhancement by 10.0%,3.2%and 5.1%in seed yield(kg ha^(-1)),oil(%),and total carbohydrates(%)of rapeseed by 57.1%,11.1%and 15.7%,respec-tively compared to *** a result,the use of hydrogel polymer will be a viable and practical solution for increasing agricultural output under water deﬁcit stress situations.

关键词： Hydrogel oil osmolytes rapeseed yield water stress

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Effectiveness of biofertilizers foliar application on yield and quality traits of flax(Linum usitatissimum L.)

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Oil Crop science 2024年第2期9卷 91-101页

作者： Saied El Sayed A.B.Bakry O.A.Nofal M.A.Abo Horish Plant Nutrition department National Research Centre33 El-Behouth St12622DokkiCairoEgypt field crops department National Research Centre33 El-Behouth St12622DokkiCairoEgypt

Flax is considered to be one of the most significant dual-purpose crops for oil and fiber production in Egypt and *** have a substantial impact on various metabolic processes,including increased photo-synthesis,endogenous hormone levels,ion absorption,nucleic acid synthesis,and protein *** factors collectively contribute to the growth and development of ***,this study aims to investigate how three biofertilizers(Algae extract,CMS as a by-product of yeast,and Metalosate multi minerals as amino acids)can enhance both the quantity and quality of flax seed yield under sandy soil *** field experiments were conducted at the Experimental Station of National Research Centre in Nubaria District,Behira Governorate,Egypt during two seasons(2021/2022)using a randomized complete block design(RCBD).The results revealed significant differences among all tested biofertilizers in terms of various characteristics studied in *** application of algae extract at a rate of 1.50 mL/L resulted in an increase in seed yield(ton/ha)by 26.69%&19.89%,straw yield(ton/ha)by 8.08%&17.12%,and oil yield(kg/ha)by 47.72%&33.69%compared to the control group during both seasons *** applications of algae extract at a rate of 1.50 mL/L along with CMS at a rate of 5 m L/L and amino acids at a rate of 1.50 mL/L demonstrated significantly higher macronutrient contents(N,P,K),micronutrient contents(Fe,Zn,Mn),seed oil content,and protein content in flax seeds during both *** highest values for seed oil content and protein content%were obtained through foliar application of amino acids at a rate of 1.50 mL/*** can be concluded that foliar sprays with these bio-fertilizers effectively improved flax performance by increasing seed straw and oil yields,nutrients oil,protein and fatty acids seeds contents.

关键词： Flax Bio fertilizers Seeds yield Nutrient contents Quality

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Improved genome annotation of Brassica oleracea highlights the importance of alternative splicing

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Horticultural Plant Journal 2024年第4期10卷 961-970页

作者： Yinqing Yang Lei Zhang Qi Tang Lingkui Zhang Xing Li Shumin Chen Kang Zhang Ying Li Xilin Hou Feng Cheng State Key Laboratory of Crop Genetics and Germplasm Enhancement College of HorticultureNanjing Agricultural UniversityNanjing 210095China State Key Laboratory of Vegetable Biobreeding Institute of Vegetables and FlowersChinese Academy of Agricultural SciencesKey Laboratory of Biology and Genetic Improvement of Horticultural Crops of the Ministry of Agriculture and Rural AffairsSino-Dutch Joint Laboratory of Horticultural GenomicsBeijing 100081China

Brassica oleracea has been developed into many important crops,including cabbage,kale,cauliflower,broccoli and so *** genome and gene annotation of cabbage(cultivar JZS),a representative morphotype of ***,has been widely used as a common reference in biological *** its genome assembly has been updated twice,the current gene annotation still lacks information on untranslated regions(UTRs)and alternative splicing(AS).Here,we constructed a high-quality gene annotation(JZSv3)using a full-length transcriptome acquired by nanopore sequencing,yielding a total of 59452 genes and 75684 ***,we re-analyzed the previously reported transcriptome data related to the development of different tissues and cold response using JZSv3 as a reference,and found that 3843 out of 11908 differentially expressed genes(DEGs)underwent AS during the development of different tissues and 309 out of 903 cold-related genes underwent AS in response to cold ***,we also identified many AS genes,including BolLHCB5 and BolHSP70,that displayed distinct expression patterns within variant transcripts of the same gene,highlighting the importance of JZSv3 as a pivotal reference for AS ***,JZSv3 provides a valuable resource for exploring gene function,especially for obtaining a deeper understanding of AS regulation mechanisms.

关键词： Brassica oleracea Oxford nanopore technologies Gene annotation Alternative splicing

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A 1-bp deletion in the MC04g1399 is highly associated with failure to produce fruit wart in bitter gourd

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Horticultural Plant Journal 2024年第1期10卷 171-180页

作者： Jia Liu Junjie Cui Jichi Dong Jian Zhong Chunfeng Zhong Fanchong Yuan Wendong Guan Fang Hu Jiaowen Cheng Kailin Hu College of Horticulture South China Agricultural UniversityGuangzhouGuangdong 510642China Key Laboratory of Biology and Genetic Improvement of Horticultural crops(South China) Ministry of Agriculture and Rural AffairsGuangzhouGuangdong 510642China Guangdong vegetables Engineering Research Center GuangzhouGuangdong 510642China department of Horticulture Foshan UniversityFoshanGuangdong 528225China Henry Fok School of Biology and Agricultural Shaoguan UniversityShaoguanGuangdong 512023China

Fruit wart is an important appearance trait influencing consumer preferences of bitter gourd(Momordica charantia L.).The molecular genetic mechanisms underlying fruit wart formation in bitter gourd are largely *** this study,genetic analysis based on four generations showed that fruit wart formation in bitter gourd was controlled by a single dominant locus named as *** Fwa locus was initially mapped into a 4.82 Mb region on pseudochromosome 4 by BSA-seq analysis and subsequently narrowed down to a 286.30 kb region by linkage analysis.A large F2population consisting of 2360 individuals was used to screen recombinants,and the Fwa locus was finally fine mapped into a 22.70 kb region harboring four protein-coding genes through recombination ***04g1399,encoding an epidermal patterning factor 2-like protein,was proposed as the best candidate gene for Fwa via sequence variation and expression *** addition,a 1-bp insertion and deletion(InDel)variation within MC04g1399 was converted to a cleaved amplified polymorphic sequence(CAPS)marker that could precisely distinguish between the warty and non-warty types with an accuracy rate of 100%among a wide panel of 126 bitter gourd germplasm *** results not only provide a scientific basis for deciphering the molecular mechanisms underlying fruit wart formation but also provide a powerful tool for efficient genetic improvement of fruit wart via marker-assisted selection.

关键词： Bitter gourd Fruit wart Bulk segregant analysis Fine-mapping Candidate gene

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Rice melatonin deficiency causes premature leaf senescence via DNA methylation regulation

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The Crop Journal 2024年第3期12卷 721-731页

作者： Yue Lu Ahmed Gharib Rujia Chen Hanyao Wang Tianyun Tao Zhihao Zuo Qing Bu Yanze Su Yaoqing Li Yanmo Luo Hamdi F.El-Mowafi Zhichao Wang Qianfeng Huang Shuting Wang Yang Xu Pengcheng Li Chenwu Xu Zefeng Yang Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Zhongshan Biological Breeding Laboratory/Key Laboratory of Plant Functional Genomics of the Ministry of Education Agriculture College of Yangzhou UniversityYangzhou 225009JiangsuChina Jiangsu Co-Innovation Center for Modern Production Technology of Grain crops Jiangsu Key Laboratory of Crop Genetics and PhysiologyYangzhou UniversityYangzhou 225009JiangsuChina National Institute of Laser Enhanced sciences(NILES) Cairo UniversityGiza 12613Egypt Rice Research department Field Crops Research InstituteAgricultural Research CenterSakhaKafr El-Sheikh 33717Egypt

In a study of DNA methylation changes in melatonin-deficient rice mutants,mutant plants showed premature leaf senescence during grain-filling and reduced grain *** deficiency led to transcriptional reprogramming,especially of genes involved in chlorophyll and carbon metabolism,redox regulation,and transcriptional regulation,during dark-induced leaf *** of mCG and mCHG in the melatonin-deficient rice mutants was associated with the expression change of both protein-coding genes and transposable element-related *** in gene expression and DNA methylation in the melatonin-deficient mutants were compensated by exogenous application of melatonin.A decreased S-adenosyl-L-methionine level may have contributed to the DNA methylation variations in rice mutants of melatonin deficiency under dark conditions.

关键词： Melatonin Premature leaf senescence Rice DNA methylation Epigenetic regulation

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SlBEL11 regulates flavonoid biosynthesis,thus fine-tuning auxin efflux to prevent premature fruit drop in tomato

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Journal of Integrative Plant Biology 2024年第4期66卷 749-770页

作者： Xiufen Dong Xianfeng Liu Lina Cheng Ruizhen Li Siqi Ge Sai Wang Yue Cai Yang Liu Sida Meng Cai-Zhong Jiang Chun-Lin Shi Tianlai Li Daqi Fu Mingfang Qi Tao Xu College of Horticulture Shenyang Agricultural UniversityShenyang 110866China Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang Province College of Horticulture ScienceZhejiang A&F UniversityHangzhou 311300China Key Laboratory for Quality and Safety Control of Subtropical Fruits and vegetables Collaborative Innovation Center for Efficient and Green Production of Agriculture in Mountainous Areas of Zhejiang ProvinceMinistry of Agriculture and Rural AffairsCollege of Horticulture ScienceZhejiang A&F UniversityHangzhou 311300China Key Laboratory of Protected Horticulture of Ministry of Education Shenyang 110866China crops Pathology and Genetic Research Unit United States Department of Agriculture Agricultural Research ServiceWashingtonDC 20250USA department of Plant sciences University of CaliforniaDavisCA 95616USA ANGENOVO Oslo 0753Norway Laboratory of Fruit Biology College of Food Science and Nutritional EngineeringChina Agricultural UniversityBeijing 100083China

Auxin regulates flower and fruit abscission,but how developmental signals mediate auxin transport in abscission remains ***,we reveal the role of the transcription factor BEL1-LIKE HOMEODOMAIN11(SlBEL11)in regulating auxin transport during abscission in tomato(Solanum lycopersicum).SlBEL11 is highly expressed in the fruit abscission zone,and its expression increases during fruit *** of SlBEL11 expression by RNA interference(RNAi)caused premature fruit drop at the breaker(Br)and 3d post-breaker(Br+3)stages of fruit *** and metabolome analysis of SlBEL11-RNAi lines revealed impaired flavonoid biosynthesis and decreased levels of most flavonoids,especially quercetin,which functions as an auxin transport *** suggested that SlBEL11 prevents premature fruit abscission by modulating auxin efflux from fruits,which is crucial for the formation of an auxin response ***,quercetin treatment suppressed premature fruit drop in SlBEL11-RNAi *** affinity purification sequencing(DAP-seq)analysis indicated that SlBEL11 induced expression of the transcription factor gene SlMYB111 by directly binding to its *** immunoprecipitation-quantitative polymerase chain reaction and electrophoretic mobility shift assay showed that *** MYELOBLASTOSIS VIRAL ONCOGENE HOMOLOG111(SlMYB111)induces the expression of the core flavonoid biosynthesis genes SlCHS1,SlCHI,SlF3H,and SlFLS by directly binding to their *** findings suggest that the SlBEL11-SlMYB111 module modulates flavonoid biosynthesis to fine-tune auxin efflux from fruits and thus maintain an auxin response gradient in the pedicel,thereby preventing premature fruit drop.

关键词： abscission auxin flavonoid SlBEL11 tomato

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High-quality assembled and annotated genomes of Nicotiana tabacum and Nicotiana benthamiana reveal chromosome evolution and changes in defense arsenals

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Molecular Plant 2024年第3期17卷 423-437页

作者： Jubin Wang Qingling Zhang Jeffrey Tung Xi Zhang Dan Liu Yingtian Deng Zhendong Tian Huilan Chen Taotao Wang Weixiao Yin Bo Lij Zhibing Lai Savithramma P.Dinesh-Kumar Barbara Baker Feng Li National Key Laboratory for Germplasm Innovation and Utilization for Fruit and Vegetable Horticultural crops College of Horticulture and Forestry SciencesHuazhong Agricultural UniversityWuhanHubei 430070China Plant Gene Expression Center Department of Plant and Microbial BiologyUniversity of CaliforniaBerkeleyBerkeleyCA 94706USA College of Plant science and Technology Huazhong Agricultural UniversityWuhanHubei 430070China College of Life science and Technology Huazhong Agricultural UniversityWuhanHubei 430070China department of Plant Biology and The Genome Center College of Biological SciencesUniversity of CalforniaDavisDavisCA 95616USA The Key Laboratory of Horticultural Plant Genetic and Improvement of Jiangxi Province Institute of Biological ResourcesJiangxi Academy of SciencesNanchang 330299China institute of vegetables and Flowers Jiangxi Academy of Agricultural SciencesNanchang 330200Chin Hubei Hongshan Laboratory WuhanHubei 430070China

Nicotiana tabacum and Nicotiana benthamiana are widely used models in plant biology ***,genomic studies of these species have *** we report the chromosome-level reference genome assemblies for *** and *** with an estimated 99.5%and 99.8%completeness,*** transcription start and termination site sequencing methods were developed and used for accurate gene annotation in *** analyses revealed evidence for the parental origins and chromosome structural changes,leading to hybrid genome formation of each ***,theantiviral silencinggenesRDR1,RDR6,DCL2,DCL3,andAGO2were lost from one or both subgenomes in ***,while both homeologs were kept in ***,the *** genome encodes fewer immune receptors and signaling components than that of *** find-ings uncover possible reasons underlying the hypersusceptible nature of *** developed the user-friendly Nicomics(http:/***/Nicomics/)web server to facilitate better use of Nicotiana genomic resources as well as gene structure and expression analyses.

关键词： Nicotiana tabacum Nicotiana benthamiana genomics evolution disease resistance NLR

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Comparison of carotenoid,chlorophyll concentrations and their biosynthetic transcript levels in different coloured cauliflower

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Horticultural Plant Journal 2024年第3期10卷 743-754页

作者： Fatemeh Izadpanah Katja Frede Forouzandeh Soltani Susanne Baldermann Food Chemistry and Human Nutrition Leibniz Institute of Vegetable and Ornamental CropsTheodor-Echtermeyer-Weg 114979 GroßbeerenGermany department of Food Chemistry Institute of Nutritional SciencesUniversity of PotsdamArthur-Scheunert-Allee 114-11614558 NuthetalGermany department of Horticultural science University of TehranDaneshkade Ave31587-77871KarajIran Faculty of Life sciences:Food Nutrition and HealthFood MetabolomeUniversity of BayreuthFritz-Hornschuch-Straße1395326 KulmbachGermany

Carotenoids and chlorophylls are among the most widely distributed pigments in nature that play essential roles in the photosynthetic apparatus and confer diverse colours in *** all vegetables,cauliflower(Brassica oleracea ***)is rich in phytochemicals and is an important crop grown all over the *** study investigates carotenoid and chlorophyll concentrations in differently pigmented cultivars and elucidates the role of transcriptional regulation of carotenoid accumulation including lutein andβ-***,we characterised changes in pigments by UHPLC-DAD-ToF-MS and changes in transcript levels of carotenoid metabolic genes by qRT-PCR in florets and leaves of orange(‘Jaffa'and‘Sunset'),purple(‘Di Sicilia Violetto'and‘Graffiti'),green(‘Trevi')and white(‘Clapton')*** levels of all carotenoid metabolic genes showed different transcript level patterns in the leaves and *** to the other cultivars,the orange cultivars had the highest levels ofβ-carotene in the florets and lutein in the leaves resulting in changes lutein/β-carotene *** the green cultivar,higher transcript levels were also found,especially for phytoene synthase and phytoene desaturase genes of the core biosynthesis ***,no increased carotenoid concentrations were observed,possibly due to a higher carotenoid turnover induced by the carotenoid cleavage dioxygenase 4 in the green *** the white(‘Clapton')and purple(‘Di Sicilia Violetto'and‘Graffiti')cultivars the phytoene desaturase transcript levels as well as carotenoid concentrations were *** concentrations changed in trend comparable to the carotenoid concentrations and were only significantly lower in the leaves of the orange cultivar‘Jaffa'.Also,the chlorophyll a/b ratio changed in‘Jaffa'.In florets the highest chlorophylls concentrations were observed for the green cultivar(‘Trevi')and the purple cultivar(‘Di Sicilia Violetto').Taken together,the study dem

关键词： Brassica oleracea L.var.botrytis Carotenoid Lutein β-Carotene Biosynthesis qRT-PCR

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Production of autotetraploid plants by in vitro chromosome engineering in Allium hirtifolium

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Horticultural Plant Journal(园艺学报:英文版) 2023年第5期9卷 986-998页

作者： Nasrin Farhadi Jaber Panahandeh Alireza Motallebi-Azar Sam Mokhtarzadeh department of Horticultural science Faculty of AgricultureUniversity of TabrizTabriz 51666-14766Iran field crops department Faculty of AgricultureUniversity of DuzceDuzce 81620Turkey

Persian shallot has been propagated vegetatively through daughter bulbs and has a narrow genetic *** the present study,to create genetic diversity in terms of ploidy level,the effects of in vitro polyploidization were investigated on morphological,physiological and phytochemical *** colchicine treatments(0,0.3%,0.5% and 0.7% concentrations)for 24,36 and 48 h and oryzalin treatments(0,0.001%,0.002% and 0.004% concentrations)for 4,6 and 8 h were used.A sterile basal plate of bulbs was used for the induction of polyploidy in liquid and solid *** obtaining plantlets,root tip chromosomes were counted for the determination of ploidy *** cytometry was performed to confirm the chromosome counting *** regenerated diploid and tetraploid plantlets were transferred to ex vitro *** and oryzalin were both successful in inducing polyploids and the polyploids induced were tetraploids and *** highest induction of polyploidy was obtained in solid media using 0.5%(w/v)colchicine for 36 h(35.0% polyploidy induction)and in 0.001%(w/v)Oryzalin for 8 h(45.5% polyploidy induction).Differences in plantlet height and weight,bulblet weight,density,stomatal width and length,and chlorophyll content were observed between tetraploid and diploid *** duplication,as a result of tetraploid induction,significantly influenced the antioxidant content and enzyme *** results showed that total phenolic content,allicin,and antioxidant capacity were significantly higher in the tetraploid plantlets than that in the diploid *** loci polymorphisms indicated that the 12 autotetraploid plants(with high allicin content)had different genotypes from the parental diploid ***,in vitro polyploidy induction not only duplicated chromosomes but also altered the DNA sequence in Allium *** vitro induction of tetraploids in *** can be a reliable way to obtain suitable plant material for bre

关键词： Persian shallot Allium hirtifolium Polyploidy Colchicine Oryzalin Molecular marker

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Triple test cross analysis for seed yield and its components in sesame under water stress conditions

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Oil Crop science 2022年第2期7卷 71-79页

作者： Mohamed Ali Abdelsatar Yousrya S.A.Metwally Ibthal S.El-Demardash Oil crops Research department Field Crops Research InstituteAgricultural Research CenterGizaEgypt Crop Intensification Research department Field Crops Research InstituteAgricultural Research CenterGizaEgypt department of Genetics and Cytology National Research CenterCairoEgypt

Water deficit is a limiting factor in sesame cultivars yield,thus identification of genetic mechanisms of sesame traits under water stress conditions is essential to development of water stress tolerant ***,the triple test cross(TTC)analysis in F_(2) population of the sesame cross(NA_(76)NA_(54))was ***,30 TTC families with their 13 respective parents were evaluated during the summer season 2020 under two irrigation treatments.i.e.,normal irrigation with 5952.38 m^(3) hm^(-2) of applied water,and water stress with 2976.19 m^(3) hm^(-2) of applied *** was implemented at the experimental field of Kafr El Hamam/Sharkia,Agricultural Research Station,Agricultural Research Center(ARC),***(D)and dominance(H)gene actions as well as epistatic and its two components of additiveadditive,additivedominance plus dominancedominance were involved in the inheritance of all studied traits under both irrigation treatments and their combined *** degree of dominance(H/D)^(0.5) verified the presence of partial dominance in most *** correlation coefficient between sums(additive)and differences(dominance)was non-significant,showing that dominant genes between lines were *** moderately water stress tolerant TTC families as the best selected families were found in families 22,25,10,12,and ***,postponing selection in these selected families to later segregating generations for all studied traits would be effective to exploit the positive effects of additiveadditive epistasis.

关键词： Epistatic Irrigation Sesame Sesamum indicum Stress susceptibility index

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